Which formulation type can be abrasive to nozzles?

Wettable powder formulations can be abrasive to nozzles due to their physical properties. These formulations consist of solid particles that need to be suspended in water to become effective. When a wettable powder is mixed with water, the particles can create a slurry that, when pumped through a nozzle, might cause wear and tear over time. The abrasive nature of these solid particles can lead to the erosion of nozzle tips, potentially affecting the quality of the spray pattern and the uniformity of the application.

In contrast, liquid formulations are typically homogeneous solutions that do not contain abrasive solid particles, and thus, they are less likely to cause nozzle wear. Granular formulations are larger particles that do not pass through spray nozzles, and ultra-fine aerosols are designed to deliver active ingredients in a very fine mist, minimizing contact with nozzle surfaces. Therefore, wettable powders stand out as the formulation type most likely to be abrasive to nozzles due to their solid particle content.